Northern Spotted Owls
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Population Demography Of Northern Spotted Owls
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Author : Eric Forsman
language : en
Publisher: Univ of California Press
Release Date : 2011-07-21
Population Demography Of Northern Spotted Owls written by Eric Forsman and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-07-21 with Science categories.
The Northern Spotted Owl, a threatened species that occurs in coniferous forests in the western United States, has become a well-known environmental symbol. But how is the owl actually faring? This book contains the results of a long-term effort by a large group of leading researchers to document population trends of the Northern Spotted Owl. The study was conducted on 11 areas in the Pacific Northwest from 1985 to 2008, and its objectives were both to evaluate population trends and to assess relationships between reproductive rates and recruitment of owls and covariates such as weather, habitat, and the invasion of a closely related species, the Barred Owl. Among other findings, the study shows that fecundity was declining in five populations, stable in three, and increasing in three areas. Annual apparent survival rates of adults were declining in 10 out of 11 areas. This broad, synthetic work provides the most complete and up-to-date picture of the population status of this inconspicuous forest owl, which is at the center of the complex and often volatile debate regarding the management of forest lands in the western United States. Researchers: Steven H. Ackers Lawrence S. Andrews David R. Anderson Robert G. Anthony Brian L. Biswell Kenneth P. Burnham Peter C. Carlson Raymond J. Davis Lowell V. Diller Katie M. Dugger Eric D. Forsman Alan B. Franklin Elizabeth M. Glenn Scott A. Gremel Dale R. Herter J. Mark Higley James E. Hines Robert B. Horn Joseph B. Lint James D. Nichols Janice A. Reid James P. Schaberl Carl J. Schwarz Thomas J. Snetsinger Stan G. Sovern Gary C. White
Of Spotted Owls Old Growth And New Policies
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Author : Bruce G. Marcot
language : en
Publisher:
Release Date : 1997
Of Spotted Owls Old Growth And New Policies written by Bruce G. Marcot and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Endangered species categories.
A Conservation Strategy For The Northern Spotted Owl
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Author :
language : en
Publisher:
Release Date : 1990
A Conservation Strategy For The Northern Spotted Owl written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Birds categories.
Final Environmental Impact Statement On Management For The Northern Spotted Owl In The National Forests
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Author :
language : en
Publisher:
Release Date : 1992
Final Environmental Impact Statement On Management For The Northern Spotted Owl In The National Forests written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Endangered species categories.
A Conservation Strategy For The Northern Spotted Owl
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Author :
language : en
Publisher:
Release Date : 1990
A Conservation Strategy For The Northern Spotted Owl written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Birds categories.
Northern Spotted Owl Effectiveness Monitoring Plan For The Northwest Forest Plan
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Author : Joseph Lint
language : en
Publisher:
Release Date : 1999
Northern Spotted Owl Effectiveness Monitoring Plan For The Northwest Forest Plan written by Joseph Lint and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Northern spotted owl categories.
Northern Spotted Owls
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Author : Patricia A. Fink Martin
language : en
Publisher: Turtleback
Release Date : 2002-03-01
Northern Spotted Owls written by Patricia A. Fink Martin and has been published by Turtleback this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-03-01 with Juvenile Nonfiction categories.
Describes the life cycle, characteristics, habitats, and behaviors of Northern spotted owls, as well as ways to prevent their extinction.
Nest Structures And Habitats Of The Northern Spotted Owl In Three Ecological Subregions Of British Columbia
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Author :
language : en
Publisher:
Release Date : 2012
Nest Structures And Habitats Of The Northern Spotted Owl In Three Ecological Subregions Of British Columbia written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Northern spotted owl categories.
Fourteen nest sites of the endangered Northern Spotted Owl (Strix occidentalis caurina) in British Columbia were sampled in 2003 and 2004. Nests were located in three broad ecosystem types: the maritime (n = 1), submaritime (n = 6), and continental (n = 7) ecological subregions. Spotted Owls exhibited flexibility in their use of different types of nest structures across their broad ecological distribution. The objectives of the analyses are (1) to describe 14 of the 16 known nest structures, nest patches, and nest stands relative to the ecological subregions in which they occur; (2) to test for habitat selection within the nest stand (patch-level) and within the local landscape that the authors defined as the area containing the forest nest stand and forest stands greater than 140 years old adjacent to it (stand-level) relative to the ecological subregions; and (3) to evaluate how local British Columbia nesting habitat information was incorporated into interpreting "Superior" owl habitat for a revised spotted owl management plan.--Document.
Threat To The Spotted Owl
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Author : Carol Parenzan Smalley
language : en
Publisher: Mitchell Lane
Release Date : 2020-02-04
Threat To The Spotted Owl written by Carol Parenzan Smalley and has been published by Mitchell Lane this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-04 with Juvenile Nonfiction categories.
In the ancient forests of North America lives a nocturnal hunterthe spotted owl. With its keen eyesight and hearing, it listens and watches for prey. From western Canada to Mexico, and in the states between these two countries, wildlife biologists are observing and counting spotted owls. Once abundant in number, this flying predators days on earth may be limited if changes arent made. In this book, read about out how this owl lives, what threats it faces, and what scientists and activists are doing to help it. Then find out what you can do to help save this threatened bird.
The Northern Spotted Owl And The Endangered Species Act
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Author : United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation and the Environment
language : en
Publisher:
Release Date : 1990
The Northern Spotted Owl And The Endangered Species Act written by United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation and the Environment and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Birds categories.